let left = document.querySelector(".left");
let right = document.querySelector(".right");

left.addEventListener("mousemove", (e) => {
    left.classList.add("left-active");
});

left.addEventListener("mouseout", (e) => {
	left.classList.remove("left-active");
});

right.addEventListener("mousemove", (e) => {
	right.classList.add("right-active");
});

right.addEventListener("mouseout", (e) => {
	right.classList.remove("right-active");
});